The cliffs seem treacherous and difficult to climb. There are hidden paths, trails, crevices, and caves outside of the tunnel system which allow dogs to go from the bottom of the cliff to the top and vice versa. There are multiple paths and there are multiple dead ends, so it's easy for those new the the Cliffs to get lost.

Created by humans to navigate the Cliffs easily, the tunnel system is not as well maintained as it used to be. Inside, it looks like a system of halls and staircases and elevators and keycard doors and rooms. Some of the tunnels are dirty, with the walls broken in, and the stairs creaky and unstable, but other parts look intact.